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Table PD-16— Belt Drive Evaporator Fan Performance — 7½-Ton — WSC090,092A3,A4,AW — Downflow Airflow
.10
.20
CFM
RPM
BHP
RPM
BHP
1-HP Standard Motor & Field Supplied Low Static Drive (1)
2400
—
—
620
0.49
2700
622
0.57
673
0.66
3000
680
0.76
727
0.87
3300
739
0.98
782
1.11
3600
798
1.25
838
1.39
Table PD-16— Continued
1.10
1.20
CFM
RPM
BHP
RPM
BHP
2400
995
1.32
1027
1.42
2700
1027
1.55
1059
1.65
3000
1065
1.83
1095
1.94
3300
1104
2.15
1134
2.27
3600
1144
2.52
1173
2.65
1- HP Standard Motor & Drive
For Standard Evaporator Fan Speed (RPM), reference Table PD-20.
Notes:
Data includes pressure drop due to standard filters and wet coils.
No accessories or options are included in pressure drop data.
Refer to Table PD-23 to determine additional static pressure drop
due to other options/accessories
1-HP Fan Motor Heat (MBH) = 2.829 x Fan BHP+.4024.
3-HP Fan Motor Heat (MBH) = 2.90 x Fan BHP + .500.
Table PD-17 — Belt Drive Evaporator Fan Performance — 7½-Ton — WSC090,092A3,A4,AW — Horizontal Airflow
.10
.20
CFM
RPM
BHP
RPM
BHP
1-HP Standard Motor & Field Supplied
Low Static Drive (1)
2400
647
0.51
686
0.58
2700
718
0.71
753
0.79
3000
789
0.96
822
1.04
3300
862
1.25
892
1.35
3600
934
1.61
963
1.71
Table PD-17 — Continued
1.10
1.20
CFM
RPM
BHP
RPM
BHP
2400
1051
1.44
1085
1.54
2700
1090
1.70
1122
1.82
3000
1136
2.00
1165
2.13
3300
1187
2.39
1214
2.50
3600
1239
2.84
1266
2.96
1-HP Standard Motor & Drive
For Standard Evaporator Fan Speed (RPM), reference Table PD-20.
Notes:
Data includes pressure drop due to standard filters and wet coils.
No accessories or options are included in pressure drop data.
Refer to Table PD-23 to determine additional static pressure drop
due to other options/accessories
1-HP Fan Motor Heat (MBH) = 2.829 x Fan BHP+.4024.
3-HP Fan Motor Heat (MBH) = 2.90 x Fan BHP + .500.
1. Field Supplied Fan Sheave AK79 and Belt AX34 required.
2. Field Supplied Motor Sheave 1VL40 x 7/8", Fan Sheave AK46 and Belt AX28 required.
PKGP-PRC003-EN
Performance
Data
External Static Pressure (Inches of Water)
.30
.40
RPM
BHP
RPM
BHP
RPM
670
0.57
720
0.66
768
719
0.74
763
0.84
807
770
0.95
810
1.05
849
823
1.21
861
1.30
897
876
1.50
913
1.61
947
3-HP Oversized Motor& Field Supplied Sheave(2)
External Static Pressure (Inches of Water)
1.30
1.40
RPM
BHP
RPM
BHP
RPM
3-HP Oversized Motor & Drive
1060
1.52
1091
1.62
1121
1091
1.77
1121
1.88
1151
1125
2.05
1154
2.17
1183
1163
2.40
1 191
2.52
1217
1202
2.78
1229
2.91
1256
External Static Pressure (Inches of Water)
.30
.40
RPM
BHP
RPM
BHP
RPM
1-HP Standard Motor & Drive
737
0.66
787
0.76
831
792
0.87
839
0.96
882
853
1.13
892
1.22
935
921
1.44
951
1.54
988
990
1.81
1016
1.92
1045
3-HP Oversized Motor & Drive
External Static Pressure (Inches of Water)
1.30
1.40
RPM
BHP
RPM
BHP
RPM
3-HP Standard Oversized Motor & Drive
1118
1.64
1152
1.75
1185
1153
1.94
1185
2.06
1216
1 194
2.26
1223
2.39
1251
1242
2.63
1269
2.76
1296
1291
3.08
1317
3.20
1343
3-HP Oversized Motor & Field Supplied High Static Drive (2)
(7½ Ton)
.50
.60
.70
BHP
RPM
BHP
RPM
0.76
810
0.84
850
0.94
850
1.04
889
1.16
890
1.27
929
1.41
933
1.50
969
1.72
980
1.84
1013
.
1.50
1.60
1.70
BHP
RPM
BHP
RPM
1.73
1151
1.83
1180
2.00
1179
2.11
1207
2.30
1211
2.42
1238
2.64
1245
2.77
1272
3.05
1282
3.18
1308
3-HP Oversized Motor & Field Supplied High Static Drive (3)
1. Field Supplied Fan Sheave AK79 and Belt AX34 required.
2. Field Supplied Fan Sheave AK61.
3. Field Supplied Motor Sheave 1VL40 x 7/8", Fan Sheave AK46 and Belt AX28 required.
Factory supplied motors, in commercial equipment, are definite purpose motors, specifically designed
and tested to operate reliably and continuously at all cataloged conditions. Using the full horsepower
range of our fan motors as shown in our tabular data will not result in nuisance tripping or premature
motor failure. Our product's warranty will not be affected.
.50
.60
.70
BHP
RPM
BHP
RPM
0.85
870
0.93
908
1.08
922
1.18
958
1.33
974
1.45
1011
1.64
1026
1.76
1062
2.02
1079
2.13
1115
1.50
1.60
1.70
BHP
RPM
BHP
RPM
1.86
1215
1.97
1247
2.18
1245
2.29
1274
2.52
1279
2.65
1308
2.90
1322
3.05
1347
3.34
—
—
Factory supplied motors, in commercial equipment, are definite purpose motors, specifically designed
and tested to operate reliably and continuously at all cataloged conditions. Using the full horsepower
range of our fan motors as shown in our tabular data will not result in nuisance tripping or premature
motor failure. Our product's warranty will not be affected.
.80
.90
BHP
RPM
BHP
RPM
BHP
1-HP Standard Motor & Drive
0.93
888
1.02
925
1.12
1.14
926
1.24
961
1.34
1.38
967
1.50
1000
1.61
1.66
1006
1.78
1041
1.91
1.97
1047
2.11
1080
2.24
3-HP Oversized Motor & Drive
1.80
1.90
BHP
RPM
BHP
RPM
BHP
1.93
1207
2.04
1234
2.14
2.23
1234
2.34
1261
2.46
2.54
1264
2.67
1292
2.80
2.90
1297
3.03
1324
3.17
3.32
1332
3.45
—
—
.80
.90
BHP
RPM
BHP
RPM
BHP
1.02
944
1.12
980
1.23
1.27
992
1.36
1026
1.47
1.58
1044
1.68
1076
1.78
1.90
1096
2.04
1129
2.16
2.27
1148
2.41
1180
2.57
1.80
1.90
BHP
RPM
BHP
RPM
BHP
2.09
1277
2.20
1305
2.32
2.40
1304
2.53
1333
2.65
2.78
1336
2.91
1363
3.04
3.19
1373
3.34
—
—
1.00
RPM
BHP
961
1.22
995
1.44
1034
1.72
1074
2.03
1113
2.38
2.00
RPM
BHP
1260
2.24
1289
2.58
1317
2.93
1349
3.31
—
—
1.00
RPM
BHP
1015
1.33
1058
1.59
1106
1.88
1158
2.27
1210
2.71
2.00
RPM
BHP
1333
2.43
1361
2.78
1390
3.17
—
—
25
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